Plow.



C. CHRISIIEIITSENa PLOW.

APPLIoATIoN FILED 00T. 7, 1907.

938,975. l Patented Nov. 2, 1909.

4 SHEETS-SHEET 2.

C. G-HRISTENSEN.

PLOW.

APPLICATION r1LEDo0T.7,-19o7.

Patented Nov. 2, 1999.

4 SHEETS-SHEET '3.

9, l@ mx Qu G. CHRISTENSEN.

mow.

APPLICATION FILED 00T. 7, 1907. 938,975. Patented Nov. 2, 1909. i 4SHEETS-SHEET 4.

J: 4W J6 FM' if 4g UNTTED STATES PATENT GFFTCE.

CARL CHRISTENSEN, OF BRADLEY, ILLINOIS, ASSGNOR TO DAVID BRADLEY MANU-FACTURING COMPANY, OF BRADLEY, ILLNOIS, A CORPORATION OF ILLNOIS.

PLOW.

To all whom it may concern.'

Be it known that 1, CARL CHRISTENSEN, a citizen of the United States,residing at Bradley, in the county of Kankakee and State of illinois,have invented certain new and useful improvements in Flows, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

My invention relates to Wheeled plows, and has particularly to do withthe mechanism for raising and lowering the beam and plow.

lt has for its object to provide a new and improved arrangement oflifting devices by which the plow may be quickly lowered point first torun into the ground and may also be readily lifted out of operativeposition.

In the accompanying drawings,-Figure 1 is a side elevation,illust-rating my improved plow, the land-wheel being removed; Fig. 2 isa plan view thereof; Fig. 3 is a detail, illustrating parts of thelifting mechanism; Fig. et is a detail, showing some of the connectionsof the rear bail; Fig. 5 is an enlarged detail, being a partialcross-section on line 5 5 of Fig. 2; Fig. G is a perspective view of apart of the front bail; and Fig. 7 is a partial view of the latch-lever.

. Referring to the drawings,10 indicates a U-shaped frame, which at itsfront end is connected to theland-wheel axle 11 so that said axle withthe frame 10 together make up the frame of the machine.

12 indicates the land-wheel, 13 the furrowwheel, and 1-1 thecaster-wheel. The furrow-wheel is mounted on a suitable support having avertical spindle 15 which is connected with the land-wheel axle 11through a bracket 1G which may be raised and lowered by means of a lever17, the bracket 16 being connected with the spindle 15 by a link 16,shown in Fig. 1. The caster-wheel is provided with a crank-arm 18 at theupper end of a caster-wheel spindle 19, said arm being connected by aconnecting-rod 2O -with an arm 21 at the upper end of the furrowwheelspindle 15 in the usual way.

22 indicates a lever mounted on and keyed to the land-wheel axle 11 forrocking the same to raise and lower the front portion of the frame, saidaxle being bent, as shown in Fig. 2, so that by partially rotating itthe i Specification of Letters Patent.

Application filed October 7, 1907.

Patented Nov. 2, 1909.

Serial No. 396,250.

land side of the front portion of the frame may be elevated ordepressed. A spring 23 is connected at its rear end with the frame andat its forward end with the lever 22, as shown in Fig. l, and serves toassist in the operation of said lever to raise the frame.

:Zet indicates a front bail, the ends of which are pivot-ally mountedupon the land-wheel axle 11, being held in place by collars 25-26secured by set-screws 27, as shown in Figs. 1 and 2. The bail 24 extendsbackward and downward from the intermediate portion of the land-wheelaxle 11, as shown in Fig. 1. Then the plow is in its elevated position,the bail 2st is inclined slightly downward from the horizontal. When theplow is in the ground, however, it extends downward at a sharp angle, asshown in Fig. 3.

28 indicates the plow-beam, which. is pivotally connected with theintermediate portion of the bail 21 by a bracket 29, 0r other suitableconnection, as shown in Fig. 2.

30 indicates a rear bail, the ends of which are pivotally mounted insuitable brackets 31 depending from the rear port-ion of the frame, asshown in Fig. 1. Said bail eX- tends forward and upward, as shown `inFig. 1, and the rear portion of the plowbeam 28 is pivotally connectedtherewith by a bracket 32, or other suitable connection.

33 indicates the plow.

341 indicates a stop secured t-o the frame 10 in position to interceptthe rear bail 30 when it reaches its lowermost position and prevent itfrom descending` farther. Said stop may be adjusted but is firmlysecured to the frame so that it acts as a rigid stop to limit thedownward movement of said bail. f

35 indicates a lifting spring, the forward end of which is connected bya strap 36, or other suitable means, with an arm 24a carried by thefront bail and depending therefrom near its pivot, as best shown inFigs. 3 and 6, the rear end of said spring being connected to an arm 37which forms an extension of one of the arms of the bail 30, as bestshown in Figs. 1 and 4. The spring 35 is connected with the arm 37 bymeans of a rod 38, which is connected with said spring and passesthrough a swiveled block 39 pivoted at one Vside of the arm 37, as

' be swung upward, thereby raising the front shown in Fig. 4. A nut 40on the rod 38 j highest position, the latch-lever 46 falls overIprovides for adjustment of the spring. As until its hook 47 engages thestop 48, as

the arm 37 is rigidly connected with the bail 30 and extends below thepivot of said bail, when the upper end of the bail swings forward anddownward in lowering the plow into operative position, the arm 37 willswing upward and backward. At the same time the arm 24a will be carriedforward and downward by the swinging of the front bail in that directionincident to the lowering' olf the plow. Consequently the ends of thespring 35 will be drawn apart, putting the spring under tension as theplow moves down into operative position. The result is that the springacts with greater force at the beginning of the lifting operation.r1`hus the lift-ing effect of the spring is automatically increased bythe movement of the bails in lowering the plow into operative position.

41 indicates a lifting-lever fulcrumed at 42 upon the frame andconnected at its forward end by a link 43 with the bail 24 at a pointnear the connection of said bail with the plow-beam, as shown in Figs. 1and 3.

44 indicates a pivot, which connects the link 43 with the lever 41.

45 indicates a screw-stop, which is carried on the front end of thelever 41 and is adapted to be adjusted to limit the movementi of thelever 41 and link 43, said stop being adapted to bear upon the upperedge of the link 43 when the lever and link come into alinement, orapproximately so, depending on the way in which. said stop is set. Bypermitting said lever and link to come into alinement, when the plow isin its lowermost position the plow will be automatically locked in theground. As the front bail is connected with the lever 41 at a pointforward of the fulcrum thereof it is apparent that by depressing therear end of the lever the rear portion of the front bail will end of theplow-beam; at the same time the rear bail being also connected with thebeam will be swung upward, raising the rear portion of the plow-beam.The rear portion of the beam, however, will not be lifted as much as thefront portion owing to the fact that the front bail swings through amuch greater are than the rear bail when the lifting lever is operated.

For locking the beam in its elevated position, as well as for releasingand depressing it, I provide a latch-lever 46 which is pivoted upon thelifting-lever 41 forward of the fulcrum thereof and is provided with ahook or latch 47 adapted to engage a suitable stop 48 carried by theframe, as shown in Figs. 1 and 5, said stop being preferably formed as ia part of a bracket 49 which supports the shown in Fig. 1. The end ofthe latch-lever 46 projects near enough to t-he drivers seat so that bypressing forward on the upper end of said lever the latch may bereleased and the bails swung downward to lower the plow-beam. The lowerend of the latch-lever 46 is fitted in a suitable socket in the forwardportion of the lever 41, so that it cannot swing forward on said leverbeyond a position substantially at right angles with the lever, as shownin Fig. 3.

By the construction described the plowbeam may be very quickly tilteddownward and lowered to cause the point of the plow to enter the groundand may be locked either in the ground or in elevated position byoperating the foot -levers described. The spring 35 being put undergreater tension by the lowering of the plow into operative position,serves to assist in raising the plow, so that it is readily operated tomove it into either of its positions. The operator by pressing forwardon the latch-lever 46, when the plow is in carrying position, at oncereleases it and depresses it, point first, so that the plow quicklyenters the ground and finds its proper level by reason of the swingingof the bails 24-30 down to their lowermost po- 9 sitions, determined bythe stop 34. The plow is locked down when the link 43 comes intoalinement with the lever 41, as hereinafter described. By simplydepressing the lever 41 the beam is released and raised to carryingposition, where it is automatically locked by the latch-lever 46.

That which I claim as my invention, and desire to secure by LettersPatent, is,-

1. In a plow, the combination of a wheeled `lever connected with one ofsaid bails for rocking them to raise and lower the beam, and a liftingspring connected with said bails for aiding in raising the beam.

3. In a plow, the combination of a wheeled frame, front and rear bailsextending transversely thereof, said front bail extending rearwardlyfrom its support, the rear bail extending forward and upward from itsfulcrum of the lever 41. WVhen the lever 41 support, a beam pivotallyconnected with is depressed to raise the plow-beam to its l said bails,a lifting lever fulcrumed on the frame and connected with the front bailfor f rocking the bails to raise and lower the beam, and a latch-levercarried by the lifting lever and adapted to engage a stop to lock thebeam in its uppermost position.

et. In a plow, the combination of a wheeled frame, a front bailextending backward and downward from its pivot, a rear bail extendingupward and forward from its pivot, a beam pivotally connected with saidbails, a lever mounted on theframe, and a link I connecting said leverwith the rear portion of the front bail.-

5. In a plow, the combination of a wheeled frame, a front bail extendingbackward and downward from its pivot, a rear bail extending upward andforward from its pivot, a beam pivotally connected with said bails, alever mounted on the frame, and a link connecting said lever with therear portion of the front bail,'said link being adapted to move intoalincmentwith said lever when the front bail is in its lowermostposition.

(5. In a plow, the combination of a wheeled frame, a front bailextending backward and downward from its pivot, a rear' bail extendingupward and forward from its pivot, a beam pivot-ally connected with saidbails, a lever mounted on the frame, -a link connecting said lever withthe rear portion of the front bail, said link being adapted to move intoalinement with said lever when the front bail is in its lowerinostposition, and a latch carried by said lever for locking the beam in itsuppermost position.

T. In a plow, the combination of a wheeled frame, a front bail extendingbackward and downward from the front portion of said frame, a rear bailextending` forward and upward from the rear portion of said frame, saidrear bail having an arm extending l downwardly from the point of itssupport on said frame, a spring connected with said arm and with thefront bail, a plow-beam connected with said bails, and a lifting leverfor raising said bails to lift the plow-beam.

S. In a plow, the combination of a frame, a landwlieel axle extendingtransversely thereof, a bail pivotally mounted on said axle andextending` rearwardly therefrom, a rear bail supported by the frame andextending upward from the point of its support, a beam connected withsaid bails, and a lever for rocking said hails to elevate the beam.

9. In a plow, the combination of a frame, a land-wheel axle extendingtransversely thereof, a bail pivotally mounted on said axle andextending rearwardly therefrom, a rear bail supported by the frame andextending upward from the point of its support, a beam connected withsaid bails, a lever for rocking said bails to elevate the beam, and alever for rocking said landwheel axle,

10. In a plow, the combination of a wheeled frame, front and rear bailsextending transversely thereof and adapted to swing verticallyindependently of the trame, said front bail extending rearwardly tromits support, the rear bail being pivoted upon the frame at its lower endand extending forward and upward, a beam pivotally connected with saidbails, and a lifting lever connected with one of said bails for rockingthem to raise and lower the beam.

11. In a plow, the combination of a wheeled frame, front and rear bailsextending transversely thereof and adapted to swing verticallyindependently of the frame, said front bail extending rearwardly fromits support, the rear bail being pivoted upon the frame at its lower endand extending forward and upward, a beam pivotally connected with saidbails, a lifting lever connected with one of said 1nails for rockingthem to raise and lower the beam, and a lifting spring connected at itsfront end with said front bail and at its rear end with the rear bailfor aiding in raising the beam.

12. In a plow, the combination of a wheeled frame, front and rear bailsextending transversely thereof and adapted to swing verticallyindependentlyI of the frame, said front bail extending rearwardly fromits support, the rear bail extending forward and upward, a, beampivotally connected with said bails, a lifting lever connected with thefront bail for rocking the bails to raise and lower the beam, and alatch-lever carried by the lifting lever' and adapted to engage a stopto lock the beam in its uppermost position.

13. In a plow, the combination of a wheeled frame, a front bailextending backward and downward from the front portion i of said frame,a rear bail extending upward and forward from the rear portion of saidframe, said bails being` adapted to swing vertically independently ofthe frame, a beam pivotally connected with said bails, a lever mountedon the frame, and a link connecting said lever with the rear portion ofthe front bail.

14. In a plow, the combination of a wheeled frame, a front bailextending backward and downward from the front portion of said frame, arear bail extending upward and forward from the rear portion of saidframe, said bails being adapted to swing vertically independently of theframe, a beam pivotally connected to said bails, a lever mounted on theframe, and a link connecting said lever with the rear portion of thefront bail, said link being adapted to move into alinement with saidlever when the front bail is in its lowermost position.

15. In a plow, the combination of a wheeled frame, a front bailextending backward and downward from the front portion of said frame, arear bail extending upward and forward from the rear portion of saidframe, said bails being adapted to swing vertieally independently of theframe, a beam pivotally connected with said bails, a level' mounted onthe frame, a link connecting said lever with the rear portion of thefront bail, said link being adapted to move into alinement with saidlever when the front bail is in its lowermost position, and a latchcarried by said lever for locking the beam in its uppermost position.

16. In a plow, the combination of a wheeled frame, a front bail pivotedat its upper end and extending backward and downward from the frontportion of said frame, a rear bail pivoted at its lower end andextending` forward and upward from the rear portion of said frame, saidbails being adapted to swing vertically independently of the frame, saidrear bail having an arm extendingl downwardly from the point of itssupport on said frame, a spring connected with said arm and with thefront bail, a plow-beam connected with said bails, and a lifting leverfor raising' said bails to lift the plow-beam.

17. In a plow, the Combination of a frame, a land-wheel axle extendingtransversely thereof, a bail pivotally mounted on said axle andextending rearwardly therefrom, a rear bail supported by the frame andextending upward from the point of its support, said bails being adaptedto swing vertically independently of the frame, a beam connected withsaid bails, and a lever for rocking' said bails to elevate the beam.

18. In a plow, the combination of a frame, a land-wheel axle extendingtransversely thereof, a bail pivotally mounted on said axle andextending rearwardly therefrom, a rear bail supported by the frame andextending upward from the point of its support, said bails being adaptedtoswing vertically independently of the frame, a beam connected withsaid bails, a lever for rocking said bails to elevate the beam, and alever for rocking said land-wheel axle.

19. 1n a plow, the combination of a frame, front and rear bailsextending transversely thereof, a beam pivotally connected with saidbails, and a lifting spring connected with said bails and put undertension by the swinging of said bails in lowering the beam intooperative position.

20. In a. plow, the combination of a frame, front and rear bailsextending transversely thereof, a beam pivotally connected with saidbails, one of said bails having an arm extending beyond the pivotthereof, and a lifting spring connected with said arm and with the otherbail and put under tension by the swinging of said bails in lowering thebeam into operative position.

CARL CHRISTENSEN.

lVitnesses 2 WM. R. BOND, T. N. MAINS.

